[GRASS-web] r.sample.category errors

Fri Jan 22 09:11:37 PST 2021

On Fri, Jan 22, 2021 at 10:35 AM Mitchell Meads <mitchell.meads at tamu.edu>
wrote:

> Thank you Anna, that did work for me! I think the issue now, however, is
> that I am unable to install the necessary R packages in GRASS GIS to run
> the potential model. It also gives me a warning to rescale variables but I
> don't think that could be the issue, could it? I've attached one more
> screenshot because I think that helps you guys out with understanding
> what's going on. Thank you so much for all your help!!
>

These messages come from R, and specifically from the lme4 package. The
first set of warnings show you have the packages, but built for
different version of R, so you may want to sort that out to make sure it's
not causing any issues. The other errors hint there is probably something
with your predictors. I am no statistical expert, but I would start with
rescaling the data and see if that helps. Also check if you have enough
samples. I would suggest to google the glmer errors, there might be more
specific answers on other (statistic) forums.

Again, grass-user mailing list is the one you should be using. Please don't
send the images as Markus points out, I assume he needs to manually approve
sending the emails over a certain size.

>
>
> Cheers,
> Mitchell Meads, PhD Student
> Texas A&M University at Galveston
> Marine & Coastal Management Sciences; CTBS <http://www.tamug.edu/ctbs/>
> Email: mitchell.meads at tamu.edu
>
>
>
>
> On Fri, Jan 22, 2021 at 8:50 AM Anna Petrášová <kratochanna at gmail.com>
> wrote:
>
>> I slightly updated the FAQs, this one is the one you need to look at
>>
>> https://github.com/ncsu-landscape-dynamics/GRASS_FUTURES/blob/master/FAQs.md#running-rfuturespotential-gives-filenotfounderror-errno-2-no-such-file-or-directory-rscript-or-windowserror-the-system-cannot-find-the-file-specified
>> <https://urldefense.com/v3/__https://github.com/ncsu-landscape-dynamics/GRASS_FUTURES/blob/master/FAQs.md*running-rfuturespotential-gives-filenotfounderror-errno-2-no-such-file-or-directory-rscript-or-windowserror-the-system-cannot-find-the-file-specified__;Iw!!KwNVnqRv!Wp9naQ7tKIF1UDMKawWraQMRLh_HN7SW6EgOAMZ6yrmvDKkOZZ9CJuS2M4dbwLFDC-Wp$>
>>
>> Let us know if that doesn't help.
>>
>> Please subscribe to grass-user, this is not the right mailing list.
>>
>> Best,
>> Anna
>>
>> On Thu, Jan 21, 2021 at 11:35 PM Mitchell Meads <mitchell.meads at tamu.edu>
>> wrote:
>>
>>>
>>> Thank you both, that did fix my issue! I have a follow up question now,
>>> however. As I'm trying to run the r.futures.potential part of the FUTURES
>>> model, it is giving me an error that I assume is associated with installing
>>> the lme4, MuMIn, optparse, and rgrass7 packages. When I go to do that in
>>> the command line terminal, it gives me a syntax error but I'm not super
>>> proficient in python to distinguish what the issue is. I've attached
>>> another screenshot to show the command line terminal error as well as the
>>> error message from the r.futures.potential tool as well. If you guys could
>>> help me with this issue, that would be greatly appreciated!
>>>
>>>
>>
>>
>>
>>>
>>> Cheers,
>>> Mitchell Meads, PhD Student
>>> Texas A&M University at Galveston
>>> Marine & Coastal Management Sciences; CTBS <http://www.tamug.edu/ctbs/>
>>> Email: mitchell.meads at tamu.edu
>>>
>>>
>>>
>>>
>>> On Thu, Jan 21, 2021 at 4:26 PM Stefan Blumentrath <
>>> Stefan.Blumentrath at nina.no> wrote:
>>>
>>>> Hi Mitchell,
>>>>
>>>>
>>>>
>>>> The problem is that the input map starts with a number. I am actually
>>>> surprised GRASS accepted that map name...
>>>>
>>>> The database management at least does support column names starting
>>>> with numbers (here 2016) and throw an error.
>>>>
>>>>
>>>>
>>>> Renaming the input map should fix it, I guess…
>>>>
>>>>
>>>>
>>>> Hope that helps.
>>>>
>>>>
>>>>
>>>> Cheers,
>>>>
>>>> Stefan
>>>>
>>>>
>>>>
>>>> P.S.: grass-user at lists.osgeo.org is more suited for that kind of
>>>> questions…. There you reach more people who could answer that kind of
>>>> questions…
>>>>
>>>>
>>>>
>>>> *From:* grass-web <grass-web-bounces at lists.osgeo.org> *On Behalf Of *Mitchell
>>>> Meads
>>>> *Sent:* torsdag 21. januar 2021 22:26
>>>> *To:* grass-web at lists.osgeo.org
>>>> *Subject:* [GRASS-web] r.sample.category errors
>>>>
>>>>
>>>>
>>>> Good afternoon GRASS GIS developers,
>>>>
>>>>
>>>>
>>>> I'm currently trying to run the futures extension through GRASS GIS and
>>>> have been following the wikipages manual on how to complete the exercise
>>>> but I'm having an error with the r.sample.category module and am curious if
>>>> one of you could point me in the right direction.
>>>>
>>>>
>>>>
>>>> I've developed all the necessary predictor rasters and the response
>>>> variable raster for my study area but the module is giving me the same
>>>> error, no matter what kind of troubleshooting I attempt. I thought that
>>>> maybe I had to reassign my null and integer values but even after I tried
>>>> that, I couldn't get the tool to run. It gives me this "Error while
>>>> executing: "CREATE TABLE output_filename (cat integer, input_filename
>>>> integer).
>>>>
>>>>
>>>>
>>>> I've attached a screenshot of the command output so you can see all the
>>>> messages GRASS GIS gives me but I'm not sure what the issue could be. If
>>>> you could please assist me, that would be greatly appreciated!
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> Cheers,
>>>>
>>>> Mitchell Meads, PhD Student
>>>>
>>>> Texas A&M University at Galveston
>>>>
>>>> Marine & Coastal Management Sciences; CTBS
>>>> <https://urldefense.com/v3/__https://eur01.safelinks.protection.outlook.com/?url=http*3A*2F*2Fwww.tamug.edu*2Fctbs*2F&data=04*7C01*7C*7C594f696d4e28418a1bd408d8be58d8c8*7C6cef373021314901831055b3abf02c73*7C0*7C0*7C637468636230514964*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C1000&sdata=3fD1RU6xquxevZ5usVc1GQOavOWz*2FCi7U34x3uwO8zs*3D&reserved=0__;JSUlJSUlJSUlJSUlJSUlJSUl!!KwNVnqRv!XoJS709JtVE4gP4hkAStlscZq0XYzxUmfoRHeo_TiQm4gMUy4Jkxns2LS5AoOHoq13-i$>
>>>>
>>>> Email: mitchell.meads at tamu.edu
>>>>
>>>>
>>>>
>>>>
>>>>
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>>
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